Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!spool.mu.edu!snorkelwacker.mit.edu!primerd!tiger1!efeustel
From: efeustel@prime.com (Ed Feustel)
Newsgroups: comp.sys.amiga.programmer
Subject: Re: Virtual Memory Program?
Message-ID: <efeustel.668096462@tiger1>
Date: 4 Mar 91 14:21:02 GMT
References: <1991Feb14.193510.13772@bradley.bradley.edu> <%1+-SC%@irie.ais.org> <1991Feb20.175103.24611@jato.jpl.nasa.gov> <1986@public.BTR.COM>
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Nntp-Posting-Host: tiger1


In order to DMA into virtual memory, the dma must use virtual addresses or
the OS must supply a properly translated virtual address for each page.
In Prime Computer's proprietary system, the I/O has access to the translation
table and DMA goes to virtual memory.